Merge branch 'master' into fix/visibility-level-setting-in-forked-projects

* master: (723 commits)
  Bump Rack Attack to v4.3.1 for security fix
  Remove duplicate entry in the changelog
  Remove extra spaces after branchname
  Fix merge-request-reopen button title
  Add branch and tag operation to tree dropdown
  Use gitlab-shell 2.6.9
  Clarify Windows shell executor artifact upload support
  Fix feature specs: we always show the build status if ci_commit is present
  Do not display project group/name when issue and MR are in same project
  Don't create CI status for refs that doesn't have .gitlab-ci.yml, even if the builds are enabled
  Use gitlab-workhorse 0.5.1
  Fix ci_projects migration by using the value only from latest row [ci skip]
  Revert sidebar position for issue and merge request
  Add info on using private Docker registries in CI [ci skip]
  Upgrade Poltergeist to 1.8.1. #4131
  Fix ux issue with "This issue will be closed automatically" message
  Move MR Builds tab next to Commits
  Api support for requesting starred projects for user
  Fix Rubocop complain.
  Fix merge widget JS for buttons
  ...

Conflicts:
	app/models/project.rb

29 files changed, 345 insertions, 168 deletions

diff --git a/app/services/ci/create_builds_service.rb b/app/services/ci/create_builds_service.rb
index 912eb6258a4..ad901f2da5d 100644
--- a/app/services/ci/create_builds_service.rb
+++ b/app/services/ci/create_builds_service.rb
@@ -29,9 +29,11 @@ module Ci
           build_attrs.merge!(ref: ref,
                              tag: tag,
                              trigger_request: trigger_request,
-                             user: user)
+                             user: user,
+                             project: commit.project)
 
-          commit.builds.create!(build_attrs)
+          build = commit.builds.create!(build_attrs)
+          build.execute_hooks
         end
       end
     end
diff --git a/app/services/ci/create_commit_service.rb b/app/services/ci/create_commit_service.rb
deleted file mode 100644
index 479a2d6defc..00000000000
--- a/app/services/ci/create_commit_service.rb
+++ /dev/null
@@ -1,28 +0,0 @@
-module Ci
-  class CreateCommitService
-    def execute(project, user, params)
-      sha = params[:checkout_sha] || params[:after]
-      origin_ref = params[:ref]
-      
-      unless origin_ref && sha.present?
-        return false
-      end
-
-      ref = origin_ref.gsub(/\Arefs\/(tags|heads)\//, '')
-
-      # Skip branch removal
-      if sha == Ci::Git::BLANK_SHA
-        return false
-      end
-
-      tag = origin_ref.start_with?('refs/tags/')
-      commit = project.gl_project.ensure_ci_commit(sha)
-      unless commit.skip_ci?
-        commit.update_committed!
-        commit.create_builds(ref, tag, user)
-      end
-
-      commit
-    end
-  end
-end
diff --git a/app/services/ci/create_trigger_request_service.rb b/app/services/ci/create_trigger_request_service.rb
index 4b86cb0a1f5..b3dfc707221 100644
--- a/app/services/ci/create_trigger_request_service.rb
+++ b/app/services/ci/create_trigger_request_service.rb
@@ -1,13 +1,13 @@
 module Ci
   class CreateTriggerRequestService
     def execute(project, trigger, ref, variables = nil)
-      commit = project.gl_project.commit(ref)
+      commit = project.commit(ref)
       return unless commit
 
       # check if ref is tag
-      tag = project.gl_project.repository.find_tag(ref).present?
+      tag = project.repository.find_tag(ref).present?
 
-      ci_commit = project.gl_project.ensure_ci_commit(commit.sha)
+      ci_commit = project.ensure_ci_commit(commit.sha)
 
       trigger_request = trigger.trigger_requests.create!(
         variables: variables,
diff --git a/app/services/ci/event_service.rb b/app/services/ci/event_service.rb
deleted file mode 100644
index 3f4e02dd26c..00000000000
--- a/app/services/ci/event_service.rb
+++ /dev/null
@@ -1,31 +0,0 @@
-module Ci
-  class EventService
-    def remove_project(user, project)
-      create(
-        description: "Project \"#{project.name}\" has been removed by #{user.username}",
-        user_id: user.id,
-        is_admin: true
-      )
-    end
-
-    def create_project(user, project)
-      create(
-        description: "Project \"#{project.name}\" has been created by #{user.username}",
-        user_id: user.id,
-        is_admin: true
-      )
-    end
-
-    def change_project_settings(user, project)
-      create(
-        project_id: project.id,
-        user_id: user.id,
-        description: "User \"#{user.username}\" updated projects settings"
-      )
-    end
-
-    def create(*args)
-      Ci::Event.create!(*args)
-    end
-  end
-end
diff --git a/app/services/ci/image_for_build_service.rb b/app/services/ci/image_for_build_service.rb
index b8d24193035..f469b13e902 100644
--- a/app/services/ci/image_for_build_service.rb
+++ b/app/services/ci/image_for_build_service.rb
@@ -4,10 +4,10 @@ module Ci
       sha = params[:sha]
       sha ||=
         if params[:ref]
-          project.gl_project.commit(params[:ref]).try(:sha)
+          project.commit(params[:ref]).try(:sha)
         end
 
-      commit = project.commits.ordered.find_by(sha: sha)
+      commit = project.ci_commits.ordered.find_by(sha: sha)
       image_name = image_for_commit(commit)
 
       image_path = Rails.root.join('public/ci', image_name)
diff --git a/app/services/ci/register_build_service.rb b/app/services/ci/register_build_service.rb
index 7beb098659c..4ff268a6f06 100644
--- a/app/services/ci/register_build_service.rb
+++ b/app/services/ci/register_build_service.rb
@@ -8,10 +8,10 @@ module Ci
       builds =
         if current_runner.shared?
           # don't run projects which have not enables shared runners
-          builds.joins(commit: { gl_project: :gitlab_ci_project }).where(ci_projects: { shared_runners_enabled: true })
+          builds.joins(:project).where(projects: { builds_enabled: true, shared_runners_enabled: true })
         else
           # do run projects which are only assigned to this runner
-          builds.joins(:commit).where(ci_commits: { gl_project_id: current_runner.gl_projects_ids })
+          builds.where(project: current_runner.projects.where(builds_enabled: true))
         end
 
       builds = builds.order('created_at ASC')
@@ -20,10 +20,9 @@ module Ci
         build.can_be_served?(current_runner)
       end
 
-
       if build
         # In case when 2 runners try to assign the same build, second runner will be declined
-        # with StateMachine::InvalidTransition in run! method.
+        # with StateMachines::InvalidTransition in run! method.
         build.with_lock do
           build.runner_id = current_runner.id
           build.save!
@@ -33,7 +32,7 @@ module Ci
 
       build
 
-    rescue StateMachine::InvalidTransition
+    rescue StateMachines::InvalidTransition
       nil
     end
   end
diff --git a/app/services/ci/test_hook_service.rb b/app/services/ci/test_hook_service.rb
deleted file mode 100644
index 3a17596aaeb..00000000000
--- a/app/services/ci/test_hook_service.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-module Ci
-  class TestHookService
-    def execute(hook, current_user)
-      Ci::WebHookService.new.build_end(hook.project.commits.last.last_build)
-    end
-  end
-end
diff --git a/app/services/create_branch_service.rb b/app/services/create_branch_service.rb
index cf7ae4345f3..de18f3bc556 100644
--- a/app/services/create_branch_service.rb
+++ b/app/services/create_branch_service.rb
@@ -13,8 +13,7 @@ class CreateBranchService < BaseService
       return error('Branch already exists')
     end
 
-    repository.add_branch(branch_name, ref)
-    new_branch = repository.find_branch(branch_name)
+    new_branch = repository.add_branch(current_user, branch_name, ref)
 
     if new_branch
       push_data = build_push_data(project, current_user, new_branch)
@@ -27,6 +26,8 @@ class CreateBranchService < BaseService
     else
       error('Invalid reference name')
     end
+  rescue GitHooksService::PreReceiveError
+    error('Branch creation was rejected by Git hook')
   end
 
   def success(branch)
diff --git a/app/services/create_commit_builds_service.rb b/app/services/create_commit_builds_service.rb
new file mode 100644
index 00000000000..31b407efeb1
--- /dev/null
+++ b/app/services/create_commit_builds_service.rb
@@ -0,0 +1,42 @@
+class CreateCommitBuildsService
+  def execute(project, user, params)
+    return false unless project.builds_enabled?
+
+    sha = params[:checkout_sha] || params[:after]
+    origin_ref = params[:ref]
+
+    unless origin_ref && sha.present?
+      return false
+    end
+
+    ref = Gitlab::Git.ref_name(origin_ref)
+
+    # Skip branch removal
+    if sha == Gitlab::Git::BLANK_SHA
+      return false
+    end
+
+    commit = project.ci_commit(sha)
+    unless commit
+      commit = project.ci_commits.new(sha: sha)
+
+      # Skip creating ci_commit when no gitlab-ci.yml is found
+      unless commit.ci_yaml_file
+        return false
+      end
+
+      # Create a new ci_commit
+      commit.save!
+    end
+
+    # Skip creating builds for commits that have [ci skip]
+    unless commit.skip_ci?
+      # Create builds for commit
+      tag = Gitlab::Git.tag_ref?(origin_ref)
+      commit.update_committed!
+      commit.create_builds(ref, tag, user)
+    end
+
+    commit
+  end
+end
diff --git a/app/services/create_release_service.rb b/app/services/create_release_service.rb
new file mode 100644
index 00000000000..e06a6f2f47a
--- /dev/null
+++ b/app/services/create_release_service.rb
@@ -0,0 +1,31 @@
+require_relative 'base_service'
+
+class CreateReleaseService < BaseService
+  def execute(tag_name, release_description)
+
+    repository = project.repository
+    existing_tag = repository.find_tag(tag_name)
+
+    # Only create a release if the tag exists
+    if existing_tag
+      release = project.releases.find_by(tag: tag_name)
+
+      if release
+        error('Release already exists', 409)
+      else
+        release = project.releases.new({ tag: tag_name, description: release_description })
+        release.save
+
+        success(release)
+      end
+    else
+      error('Tag does not exist', 404)
+    end
+  end
+
+  def success(release)
+    out = super()
+    out[:release] = release
+    out
+  end
+end
diff --git a/app/services/create_tag_service.rb b/app/services/create_tag_service.rb
index 9917119fce2..2452999382a 100644
--- a/app/services/create_tag_service.rb
+++ b/app/services/create_tag_service.rb
@@ -19,16 +19,16 @@ class CreateTagService < BaseService
     new_tag = repository.find_tag(tag_name)
 
     if new_tag
-      if release_description
-        release = project.releases.find_or_initialize_by(tag: tag_name)
-        release.update_attributes(description: release_description)
-      end
-
       push_data = create_push_data(project, current_user, new_tag)
       EventCreateService.new.push(project, current_user, push_data)
       project.execute_hooks(push_data.dup, :tag_push_hooks)
       project.execute_services(push_data.dup, :tag_push_hooks)
 
+      if release_description
+        CreateReleaseService.new(@project, @current_user).
+          execute(tag_name, release_description)
+      end
+
       success(new_tag)
     else
       error('Invalid reference name')
diff --git a/app/services/delete_branch_service.rb b/app/services/delete_branch_service.rb
index b19b112a0c4..22bf9dd935e 100644
--- a/app/services/delete_branch_service.rb
+++ b/app/services/delete_branch_service.rb
@@ -24,7 +24,7 @@ class DeleteBranchService < BaseService
       return error('You dont have push access to repo', 405)
     end
 
-    if repository.rm_branch(branch_name)
+    if repository.rm_branch(current_user, branch_name)
       push_data = build_push_data(branch)
 
       EventCreateService.new.push(project, current_user, push_data)
@@ -35,6 +35,8 @@ class DeleteBranchService < BaseService
     else
       error('Failed to remove branch')
     end
+  rescue GitHooksService::PreReceiveError
+    error('Branch deletion was rejected by Git hook')
   end
 
   def error(message, return_code = 400)
diff --git a/app/services/files/base_service.rb b/app/services/files/base_service.rb
index 008833eed80..9a67b160940 100644
--- a/app/services/files/base_service.rb
+++ b/app/services/files/base_service.rb
@@ -26,7 +26,7 @@ module Files
       else
         error("Something went wrong. Your changes were not committed")
       end
-    rescue Repository::CommitError, Repository::PreReceiveError, ValidationError => ex
+    rescue Repository::CommitError, GitHooksService::PreReceiveError, ValidationError => ex
       error(ex.message)
     end
 
@@ -53,7 +53,7 @@ module Files
 
       unless project.empty_repo?
         unless repository.branch_names.include?(@current_branch)
-          raise_error("You can only create files if you are on top of a branch")
+          raise_error("You can only create or edit files when you are on a branch")
         end
 
         if @current_branch != @target_branch
diff --git a/app/services/git_hooks_service.rb b/app/services/git_hooks_service.rb
new file mode 100644
index 00000000000..8f5c3393dfc
--- /dev/null
+++ b/app/services/git_hooks_service.rb
@@ -0,0 +1,28 @@
+class GitHooksService
+  PreReceiveError = Class.new(StandardError)
+
+  def execute(user, repo_path, oldrev, newrev, ref)
+    @repo_path  = repo_path
+    @user       = Gitlab::ShellEnv.gl_id(user)
+    @oldrev     = oldrev
+    @newrev     = newrev
+    @ref        = ref
+
+    %w(pre-receive update).each do |hook_name|
+      unless run_hook(hook_name)
+        raise PreReceiveError.new("Git operation was rejected by #{hook_name} hook")
+      end
+    end
+
+    yield
+
+    run_hook('post-receive')
+  end
+
+  private
+
+  def run_hook(name)
+    hook = Gitlab::Git::Hook.new(name, @repo_path)
+    hook.trigger(@user, @oldrev, @newrev, @ref)
+  end
+end
diff --git a/app/services/git_push_service.rb b/app/services/git_push_service.rb
index f11690aa3f4..d7ea30bc315 100644
--- a/app/services/git_push_service.rb
+++ b/app/services/git_push_service.rb
@@ -61,6 +61,7 @@ class GitPushService
     EventCreateService.new.push(project, user, @push_data)
     project.execute_hooks(@push_data.dup, :push_hooks)
     project.execute_services(@push_data.dup, :push_hooks)
+    CreateCommitBuildsService.new.execute(project, @user, @push_data)
     ProjectCacheWorker.perform_async(project.id)
   end
 
diff --git a/app/services/git_tag_push_service.rb b/app/services/git_tag_push_service.rb
index 1cc42b0b0ad..4144c7111d0 100644
--- a/app/services/git_tag_push_service.rb
+++ b/app/services/git_tag_push_service.rb
@@ -10,6 +10,7 @@ class GitTagPushService
     EventCreateService.new.push(project, user, @push_data)
     project.execute_hooks(@push_data.dup, :tag_push_hooks)
     project.execute_services(@push_data.dup, :tag_push_hooks)
+    CreateCommitBuildsService.new.execute(project, @user, @push_data)
     ProjectCacheWorker.perform_async(project.id)
 
     true
diff --git a/app/services/gravatar_service.rb b/app/services/gravatar_service.rb
index 4bee0c26a68..433ecc2df32 100644
--- a/app/services/gravatar_service.rb
+++ b/app/services/gravatar_service.rb
@@ -1,13 +1,13 @@
 class GravatarService
   include Gitlab::CurrentSettings
 
-  def execute(email, size = nil)
+  def execute(email, size = nil, scale = 2)
     if current_application_settings.gravatar_enabled? && email.present?
       size = 40 if size.nil? || size <= 0
 
       sprintf gravatar_url,
         hash: Digest::MD5.hexdigest(email.strip.downcase),
-        size: size,
+        size: size * scale,
         email: email.strip
     end
   end
diff --git a/app/services/issuable_base_service.rb b/app/services/issuable_base_service.rb
index 11d2b08bba7..2556f06e2d3 100644
--- a/app/services/issuable_base_service.rb
+++ b/app/services/issuable_base_service.rb
@@ -27,6 +27,12 @@ class IssuableBaseService < BaseService
       old_branch, new_branch)
   end
 
+  def create_task_status_note(issuable)
+    issuable.updated_tasks.each do |task|
+      SystemNoteService.change_task_status(issuable, issuable.project, current_user, task)
+    end
+  end
+
   def filter_params(issuable_ability_name = :issue)
     params[:assignee_id]  = "" if params[:assignee_id] == IssuableFinder::NONE
     params[:milestone_id] = "" if params[:milestone_id] == IssuableFinder::NONE
@@ -47,14 +53,7 @@ class IssuableBaseService < BaseService
 
     if params.present? && issuable.update_attributes(params.merge(updated_by: current_user))
       issuable.reset_events_cache
-
-      if issuable.labels != old_labels
-        create_labels_note(
-          issuable,
-          issuable.labels - old_labels,
-          old_labels - issuable.labels)
-      end
-
+      handle_common_system_notes(issuable, old_labels: old_labels)
       handle_changes(issuable)
       issuable.create_new_cross_references!(current_user)
       execute_hooks(issuable, 'update')
@@ -71,4 +70,19 @@ class IssuableBaseService < BaseService
       close_service.new(project, current_user, {}).execute(issuable)
     end
   end
+
+  def handle_common_system_notes(issuable, options = {})
+    if issuable.previous_changes.include?('title')
+      create_title_change_note(issuable, issuable.previous_changes['title'].first)
+    end
+
+    if issuable.previous_changes.include?('description') && issuable.tasks?
+      create_task_status_note(issuable)
+    end
+
+    old_labels = options[:old_labels]
+    if old_labels && (issuable.labels != old_labels)
+      create_labels_note(issuable, issuable.labels - old_labels, old_labels - issuable.labels)
+    end
+  end
 end
diff --git a/app/services/issues/update_service.rb b/app/services/issues/update_service.rb
index 7c112f731a7..a55a04dd5e0 100644
--- a/app/services/issues/update_service.rb
+++ b/app/services/issues/update_service.rb
@@ -13,10 +13,6 @@ module Issues
         create_assignee_note(issue)
         notification_service.reassigned_issue(issue, current_user)
       end
-
-      if issue.previous_changes.include?('title')
-        create_title_change_note(issue, issue.previous_changes['title'].first)
-      end
     end
 
     def reopen_service
diff --git a/app/services/merge_requests/merge_service.rb b/app/services/merge_requests/merge_service.rb
index 7963af127e1..cabc3d8fabb 100644
--- a/app/services/merge_requests/merge_service.rb
+++ b/app/services/merge_requests/merge_service.rb
@@ -6,15 +6,12 @@ module MergeRequests
   # Executed when you do merge via GitLab UI
   #
   class MergeService < MergeRequests::BaseService
-    attr_reader :merge_request, :commit_message
+    attr_reader :merge_request
 
-    def execute(merge_request, commit_message)
-      @commit_message = commit_message
+    def execute(merge_request)
       @merge_request = merge_request
 
-      unless @merge_request.mergeable?
-        return error('Merge request is not mergeable')
-      end
+      return error('Merge request is not mergeable') unless @merge_request.mergeable?
 
       merge_request.in_locked_state do
         if commit
@@ -32,13 +29,13 @@ module MergeRequests
       committer = repository.user_to_committer(current_user)
 
       options = {
-        message: commit_message,
+        message: params[:commit_message] || merge_request.merge_commit_message,
         author: committer,
         committer: committer
       }
 
       repository.merge(current_user, merge_request.source_sha, merge_request.target_branch, options)
-    rescue Exception => e
+    rescue StandardError => e
       merge_request.update(merge_error: "Something went wrong during merge")
       Rails.logger.error(e.message)
       return false
@@ -46,6 +43,11 @@ module MergeRequests
 
     def after_merge
       MergeRequests::PostMergeService.new(project, current_user).execute(merge_request)
+
+      if params[:should_remove_source_branch]
+        DeleteBranchService.new(@merge_request.source_project, current_user).
+          execute(merge_request.source_branch)
+      end
     end
   end
 end
diff --git a/app/services/merge_requests/merge_when_build_succeeds_service.rb b/app/services/merge_requests/merge_when_build_succeeds_service.rb
new file mode 100644
index 00000000000..5cf7404a493
--- /dev/null
+++ b/app/services/merge_requests/merge_when_build_succeeds_service.rb
@@ -0,0 +1,55 @@
+module MergeRequests
+  class MergeWhenBuildSucceedsService < MergeRequests::BaseService
+    # Marks the passed `merge_request` to be merged when the build succeeds or
+    # updates the params for the automatic merge
+    def execute(merge_request)
+      merge_request.merge_params.merge!(params)
+
+      # The service is also called when the merge params are updated.
+      already_approved = merge_request.merge_when_build_succeeds?
+
+      unless already_approved
+        merge_request.merge_when_build_succeeds = true
+        merge_request.merge_user                = @current_user
+
+        SystemNoteService.merge_when_build_succeeds(merge_request, @project, @current_user, merge_request.last_commit)
+      end
+
+      merge_request.save
+    end
+
+    # Triggers the automatic merge of merge_request once the build succeeds
+    def trigger(build)
+      merge_requests = merge_request_from(build)
+
+      merge_requests.each do |merge_request|
+        next unless merge_request.merge_when_build_succeeds?
+
+        if merge_request.ci_commit && merge_request.ci_commit.success? && merge_request.mergeable?
+          MergeWorker.perform_async(merge_request.id, merge_request.merge_user_id, merge_request.merge_params)
+        end
+      end
+    end
+
+    # Cancels the automatic merge
+    def cancel(merge_request)
+      if merge_request.merge_when_build_succeeds? && merge_request.open?
+        merge_request.reset_merge_when_build_succeeds
+        SystemNoteService.cancel_merge_when_build_succeeds(merge_request, @project, @current_user)
+
+        success
+      else
+        error("Can't cancel the automatic merge", 406)
+      end
+    end
+
+    private
+
+    def merge_request_from(build)
+      merge_requests = @project.origin_merge_requests.opened.where(source_branch: build.ref).to_a
+      merge_requests += @project.fork_merge_requests.opened.where(source_branch: build.ref).to_a
+
+      merge_requests.uniq.select(&:source_project)
+    end
+  end
+end
diff --git a/app/services/merge_requests/refresh_service.rb b/app/services/merge_requests/refresh_service.rb
index e180edb4bf3..8b3d56c2b4c 100644
--- a/app/services/merge_requests/refresh_service.rb
+++ b/app/services/merge_requests/refresh_service.rb
@@ -11,6 +11,7 @@ module MergeRequests
       # empty diff during a manual merge
       close_merge_requests
       reload_merge_requests
+      reset_merge_when_build_succeeds
 
       # Leave a system note if a branch was deleted/added
       if branch_added? || branch_removed?
@@ -57,7 +58,6 @@ module MergeRequests
       merge_requests = filter_merge_requests(merge_requests)
 
       merge_requests.each do |merge_request|
-
         if merge_request.source_branch == @branch_name || force_push?
           merge_request.reload_code
           merge_request.mark_as_unchecked
@@ -76,6 +76,10 @@ module MergeRequests
       end
     end
 
+    def reset_merge_when_build_succeeds
+      merge_requests_for_source_branch.each(&:reset_merge_when_build_succeeds)
+    end
+
     def find_new_commits
       if branch_added?
         @commits = []
@@ -108,7 +112,7 @@ module MergeRequests
 
       merge_requests_for_source_branch.each do |merge_request|
         SystemNoteService.change_branch_presence(
-            merge_request, merge_request.project, @current_user,
+          merge_request, merge_request.project, @current_user,
             :source, @branch_name, presence)
       end
     end
diff --git a/app/services/merge_requests/update_service.rb b/app/services/merge_requests/update_service.rb
index a5db3776eb6..5ff2cc03dda 100644
--- a/app/services/merge_requests/update_service.rb
+++ b/app/services/merge_requests/update_service.rb
@@ -30,10 +30,6 @@ module MergeRequests
         notification_service.reassigned_merge_request(merge_request, current_user)
       end
 
-      if merge_request.previous_changes.include?('title')
-        create_title_change_note(merge_request, merge_request.previous_changes['title'].first)
-      end
-
       if merge_request.previous_changes.include?('target_branch') ||
           merge_request.previous_changes.include?('source_branch')
         merge_request.mark_as_unchecked
diff --git a/app/services/notes/create_service.rb b/app/services/notes/create_service.rb
index 25a985df4d8..a8486e6a5a1 100644
--- a/app/services/notes/create_service.rb
+++ b/app/services/notes/create_service.rb
@@ -5,11 +5,6 @@ module Notes
       note.author = current_user
       note.system = false
 
-      if contains_emoji_only?(params[:note])
-        note.is_award = true
-        note.note = emoji_name(params[:note])
-      end
-
       if note.save
         notification_service.new_note(note)
 
@@ -33,13 +28,5 @@ module Notes
       note.project.execute_hooks(note_data, :note_hooks)
       note.project.execute_services(note_data, :note_hooks)
     end
-
-    def contains_emoji_only?(note)
-      note =~ /\A:?[-_+[:alnum:]]*:?\s?\z/
-    end
-
-    def emoji_name(note)
-      note.match(/\A:?([-_+[:alnum:]]*):?\s?/)[1]
-    end
   end
 end
diff --git a/app/services/notification_service.rb b/app/services/notification_service.rb
index d6550fbb555..bdf7b3ad2bb 100644
--- a/app/services/notification_service.rb
+++ b/app/services/notification_service.rb
@@ -13,14 +13,14 @@ class NotificationService
   # even if user disabled notifications
   def new_key(key)
     if key.user
-      mailer.new_ssh_key_email(key.id)
+      mailer.new_ssh_key_email(key.id).deliver_later
     end
   end
 
   # Always notify user about email added to profile
   def new_email(email)
     if email.user
-      mailer.new_email_email(email.id)
+      mailer.new_email_email(email.id).deliver_later
     end
   end
 
@@ -79,17 +79,27 @@ class NotificationService
   end
 
   def merge_mr(merge_request, current_user)
-    close_resource_email(merge_request, merge_request.target_project, current_user, 'merged_merge_request_email')
+    close_resource_email(
+      merge_request,
+      merge_request.target_project,
+      current_user,
+      'merged_merge_request_email'
+    )
   end
 
   def reopen_mr(merge_request, current_user)
-    reopen_resource_email(merge_request, merge_request.target_project, current_user, 'merge_request_status_email', 'reopened')
+    reopen_resource_email(
+      merge_request,
+      merge_request.target_project,
+      current_user, 'merge_request_status_email',
+      'reopened'
+    )
   end
 
   # Notify new user with email after creation
   def new_user(user, token = nil)
     # Don't email omniauth created users
-    mailer.new_user_email(user.id, token) unless user.identities.any?
+    mailer.new_user_email(user.id, token).deliver_later unless user.identities.any?
   end
 
   # Notify users on new note in system
@@ -135,53 +145,63 @@ class NotificationService
     recipients = reject_unsubscribed_users(recipients, note.noteable)
 
     recipients.delete(note.author)
+    recipients = recipients.uniq
 
     # build notify method like 'note_commit_email'
     notify_method = "note_#{note.noteable_type.underscore}_email".to_sym
-
     recipients.each do |recipient|
-      mailer.send(notify_method, recipient.id, note.id)
+      mailer.send(notify_method, recipient.id, note.id).deliver_later
     end
   end
 
   def invite_project_member(project_member, token)
-    mailer.project_member_invited_email(project_member.id, token)
+    mailer.project_member_invited_email(project_member.id, token).deliver_later
   end
 
   def accept_project_invite(project_member)
-    mailer.project_invite_accepted_email(project_member.id)
+    mailer.project_invite_accepted_email(project_member.id).deliver_later
   end
 
   def decline_project_invite(project_member)
-    mailer.project_invite_declined_email(project_member.project.id, project_member.invite_email, project_member.access_level, project_member.created_by_id)
+    mailer.project_invite_declined_email(
+      project_member.project.id,
+      project_member.invite_email,
+      project_member.access_level,
+      project_member.created_by_id
+    ).deliver_later
   end
 
   def new_project_member(project_member)
-    mailer.project_access_granted_email(project_member.id)
+    mailer.project_access_granted_email(project_member.id).deliver_later
   end
 
   def update_project_member(project_member)
-    mailer.project_access_granted_email(project_member.id)
+    mailer.project_access_granted_email(project_member.id).deliver_later
   end
 
   def invite_group_member(group_member, token)
-    mailer.group_member_invited_email(group_member.id, token)
+    mailer.group_member_invited_email(group_member.id, token).deliver_later
   end
 
   def accept_group_invite(group_member)
-    mailer.group_invite_accepted_email(group_member.id)
+    mailer.group_invite_accepted_email(group_member.id).deliver_later
   end
 
   def decline_group_invite(group_member)
-    mailer.group_invite_declined_email(group_member.group.id, group_member.invite_email, group_member.access_level, group_member.created_by_id)
+    mailer.group_invite_declined_email(
+      group_member.group.id,
+      group_member.invite_email,
+      group_member.access_level,
+      group_member.created_by_id
+    ).deliver_later
   end
 
   def new_group_member(group_member)
-    mailer.group_access_granted_email(group_member.id)
+    mailer.group_access_granted_email(group_member.id).deliver_later
   end
 
   def update_group_member(group_member)
-    mailer.group_access_granted_email(group_member.id)
+    mailer.group_access_granted_email(group_member.id).deliver_later
   end
 
   def project_was_moved(project, old_path_with_namespace)
@@ -189,7 +209,11 @@ class NotificationService
     recipients = reject_muted_users(recipients, project)
 
     recipients.each do |recipient|
-      mailer.project_was_moved_email(project.id, recipient.id, old_path_with_namespace)
+      mailer.project_was_moved_email(
+        project.id,
+        recipient.id,
+        old_path_with_namespace
+      ).deliver_later
     end
   end
 
@@ -339,7 +363,7 @@ class NotificationService
     recipients = build_recipients(target, project, target.author)
 
     recipients.each do |recipient|
-      mailer.send(method, recipient.id, target.id)
+      mailer.send(method, recipient.id, target.id).deliver_later
     end
   end
 
@@ -347,7 +371,7 @@ class NotificationService
     recipients = build_recipients(target, project, current_user)
 
     recipients.each do |recipient|
-      mailer.send(method, recipient.id, target.id, current_user.id)
+      mailer.send(method, recipient.id, target.id, current_user.id).deliver_later
     end
   end
 
@@ -358,7 +382,13 @@ class NotificationService
     recipients = build_recipients(target, project, current_user, [previous_assignee])
 
     recipients.each do |recipient|
-      mailer.send(method, recipient.id, target.id, previous_assignee_id, current_user.id)
+      mailer.send(
+        method,
+        recipient.id,
+        target.id,
+        previous_assignee_id,
+        current_user.id
+      ).deliver_later
     end
   end
 
@@ -366,7 +396,7 @@ class NotificationService
     recipients = build_recipients(target, project, current_user)
 
     recipients.each do |recipient|
-      mailer.send(method, recipient.id, target.id, status, current_user.id)
+      mailer.send(method, recipient.id, target.id, status, current_user.id).deliver_later
     end
   end
 
@@ -388,7 +418,7 @@ class NotificationService
   end
 
   def mailer
-    Notify.delay
+    Notify
   end
 
   def previous_record(object, attribute)
diff --git a/app/services/projects/create_service.rb b/app/services/projects/create_service.rb
index 700a1db04d8..a6820183bee 100644
--- a/app/services/projects/create_service.rb
+++ b/app/services/projects/create_service.rb
@@ -64,8 +64,10 @@ module Projects
       after_create_actions if @project.persisted?
 
       @project
-    rescue
-      @project.errors.add(:base, "Can't save project. Please try again later")
+    rescue => e
+      message = "Unable to save project: #{e.message}"
+      Rails.logger.error(message)
+      @project.errors.add(:base, message) if @project
       @project
     end
 
diff --git a/app/services/projects/fork_service.rb b/app/services/projects/fork_service.rb
index 5da1c7afd92..0577ae778d5 100644
--- a/app/services/projects/fork_service.rb
+++ b/app/services/projects/fork_service.rb
@@ -7,6 +7,8 @@ module Projects
         description:            @project.description,
         name:                   @project.name,
         path:                   @project.path,
+        shared_runners_enabled: @project.shared_runners_enabled,
+        builds_enabled:         @project.builds_enabled,
         namespace_id:           @params[:namespace].try(:id) || current_user.namespace.id
       }
 
@@ -15,19 +17,6 @@ module Projects
       end
 
       new_project = CreateService.new(current_user, new_params).execute
-
-      if new_project.persisted?
-        if @project.builds_enabled?
-          new_project.enable_ci
-
-          settings = @project.gitlab_ci_project.attributes.select do |attr_name, value|
-            ["public", "shared_runners_enabled", "allow_git_fetch"].include? attr_name
-          end
-
-          new_project.gitlab_ci_project.update(settings)
-        end
-      end
-
       new_project
     end
   end
diff --git a/app/services/system_note_service.rb b/app/services/system_note_service.rb
index 708c2f00486..6975b2ee55b 100644
--- a/app/services/system_note_service.rb
+++ b/app/services/system_note_service.rb
@@ -125,7 +125,21 @@ class SystemNoteService
   # Returns the created Note object
   def self.change_status(noteable, project, author, status, source)
     body = "Status changed to #{status}"
-    body += " by #{source.gfm_reference}" if source
+    body += " by #{source.gfm_reference(project)}" if source
+
+    create_note(noteable: noteable, project: project, author: author, note: body)
+  end
+
+  # Called when 'merge when build succeeds' is executed
+  def self.merge_when_build_succeeds(noteable, project, author, last_commit)
+    body = "Enabled an automatic merge when the build for #{last_commit.to_reference(project)} succeeds"
+
+    create_note(noteable: noteable, project: project, author: author, note: body)
+  end
+
+  # Called when 'merge when build succeeds' is canceled
+  def self.cancel_merge_when_build_succeeds(noteable, project, author)
+    body = "Canceled the automatic merge"
 
     create_note(noteable: noteable, project: project, author: author, note: body)
   end
@@ -341,4 +355,22 @@ class SystemNoteService
 
     "* #{commit_ids} - #{commits_text} from branch `#{branch}`\n"
   end
+
+  # Called when the status of a Task has changed
+  #
+  # noteable  - Noteable object.
+  # project   - Project owning noteable
+  # author    - User performing the change
+  # new_task  - TaskList::Item object.
+  #
+  # Example Note text:
+  #
+  #   "Soandso marked the task Whatever as completed."
+  #
+  # Returns the created Note object
+  def self.change_task_status(noteable, project, author, new_task)
+    status_label = new_task.complete? ? Taskable::COMPLETED : Taskable::INCOMPLETE
+    body = "Marked the task **#{new_task.source}** as #{status_label}"
+    create_note(noteable: noteable, project: project, author: author, note: body)
+  end
 end
diff --git a/app/services/update_release_service.rb b/app/services/update_release_service.rb
new file mode 100644
index 00000000000..25eb13ef09a
--- /dev/null
+++ b/app/services/update_release_service.rb
@@ -0,0 +1,29 @@
+require_relative 'base_service'
+
+class UpdateReleaseService < BaseService
+  def execute(tag_name, release_description)
+
+    repository = project.repository
+    existing_tag = repository.find_tag(tag_name)
+
+    if existing_tag
+      release = project.releases.find_by(tag: tag_name)
+
+      if release
+        release.update_attributes(description: release_description)
+
+        success(release)
+      else
+        error('Release does not exist', 404)
+      end
+    else
+      error('Tag does not exist', 404)
+    end
+  end
+
+  def success(release)
+    out = super()
+    out[:release] = release
+    out
+  end
+end